25.0cm3
12.5 cm3
10.0 cm3
5.0cm3
Correct answer is B
No explanation has been provided for this answer.
0.02
0.04
0.06
0.08
Correct answer is B
No explanation has been provided for this answer.
C 3 H 6
C 4H 8
C 5C 10
C 6H 12
Correct answer is D
No explanation has been provided for this answer.
Which of the following would support the conclusion that a solid sample is a mixture?
the solid can be ground to a fine powder
the density of the solid is 2.25 g dm3
the solid has a melting range of 300oC to 375oC
the solid absorbs moisture from the atmosphere
Correct answer is C
No explanation has been provided for this answer.
the reaction rate increases
concentration of SO3 decreases
concentration of SO3 increases
SO2 gas becomes unreactive
O2 gas becomes unreactive
Correct answer is C
reducing the temperature from 800ºc to 500ºc will favour forward reaction according to Le Chatelier's principle hence the concentration of \(SO_3\) increases.